Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"bac do thoi snippets" » "bac dao thoi snippets", "bac doi thoi snippets", "bac do thi snippets", "bac bo thoi snippets", "ban do thoi snippets", "bac ho thoi snippets", "bac do thoi slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("bac do thoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("bac do thoi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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